Improved refrigerator-car



\ To` all whom it may concern:

\ Beit known that I, J. B. SUTBERLAND, of Detroit, in the county ofWayne and State of Michigan', have invented a new and Improved pRefrigerator-Car; and I do hereby declare that the following is a full,clear, and exact description thereof, which will enable others skilledin the art to make and use the same, reference being had to theaccompanying drawings, forming part of this specification.

' This invention relates to an improved refrigcrater-car; and `consistsin such an arrangement ofthe internal fittings of a double-walled, ydouble-roofed, and double-floored car as to l insure a constantcirculation of the air within the car, so that the warmed air isconduct-ed through ice-chests, and, thus cooled, returned to the body ofthe car.

In the accompanying drawings, Figure 1 is y a vertical longitudinalsection of one-half of my improved refrigerator-car, and Fig. `2 is aSimilar letters of reference indicate corresponding parts.

The car is provided with two ice-chests, one of which is shown at A, theother being at y the opposite extremity of the car. in a car of ordinarysize will be constructed to contain about eight hundred pounds of ice. yBis a lap, hung on hinges, which -I prefer to i have eccentric, and whenit is desired to be opened it is heldin position shown in Fig. l

. UNITED STATES;

transverse section thereof at line w x of Fig. 1.

Each chest PATEN'I OFFICE. i.

J. B. SUTHERLAD, OF DETROIT, MICHIGAN.

-I M PROVED REFRlGERATOR-CAR.

Specification forming part of Letters Patent No. 71,423, dated November26, 1867'. y

bythebonb. The madame-walled,doubleroofed, and doubleffloored, as shownat a, and

the space between the walls may be lled withi sawdust, felt, or otherappropriate material,.. or may be left unlled. In frontl and rear..`ends of the car are doors C C', to enable ice to be supplied to thechest in case of need. D

D are gas-pipes laid along the roof of the car,

from which are hung the hooks d d, for hanging meat and other edibles...F is anjinner` slide-door, between which` and :theouter door` E isinterposed a mattress or mattingfG, to keep the car as nearly air-tightas possible.

A space above flaps B admits thepassageof 1` the warmed air to theice-chests, where it` is cooled, and passes,in direction ofthearf y rowsthrough space H, `backinto the body of the car.

I claim as new and desireto secure by LettersPatentn i Thedouble-walled, double-roofed, doublefloored car, having ice-chests A ateach eX-` tremity, closed by the hangingliaps B, substantially as abovedescribed, having spaces` S and F arranged so as to produce aconstant,circulation of the air in the car,in manner substantially as and` forthe purposes above set forth and described., y

' J. B. SU'llEURLAND.` Witnesses:

J. N. A s. comm, F. C. ADAusoN.

